49776-75-2

Upstream product

• 136850-85-6 Acetic acid 6-[(E)-3-(2,4-bis-benzyloxy-phenyl)-acryloyl]-5-methoxy-2,2-dimethyl-4-oxo-chroman-7-yl ester 
• 136850-87-8 3-(2,4-Bis-benzyloxy-phenyl)-6-hydroxy-5-methoxy-8,8-dimethyl-7,8-dihydro-6H-pyrano[3,2-g]chromen-4-one 
• 136850-86-7 7-<2,4-Bis(benzyloxy)phenyl>-2,3-dihydro-5-methoxy-2,2-dimethyl-4H,6H-benzo<1,2-b:5,4-b'>dipyran-4,6-dione 
• 136850-88-9 2',4'-Bis(benzyloxy)-5-methoxy-2'',2''-dimethylpyrano<5'',6''-g>isoflavone 
• 136850-84-5 7-Hydroxy-5-methoxy-2,2-dimethyl-6-<1-oxo-3-(2,4-bis(benzyloxy)phenyl)-2-propenyl>-4-chromanone 
• 124360-59-4 6-acetyl-7-hydroxy-5-methoxy-2,2-dimethyl-4-chromanone 
• 50277-02-6 alpinum isoflavone 
• 108-24-7 acetic anhydride 

Relevant academic research and scientific papers

Synthesis of parvisoflavones A and B

Parvisoflavone B (2',4',5-trihydroxy-2'',2''-dimethylpyrano[5'',6''-g]isoflavone was synthesized by regioselective reduction of 7-[2,4-bis(benzyloxy)phenyl]-2,3-dihydro-5-methoxy-2,2-dimethyl-4H,6H- benzo[1,2-b:5,4-b']dipyrano-4,6-dione with sodium borohy

FUNGITOXIC DIHYDROFURANOISOFLAVONES AND RELATED COMPOUNDS IN WHITE LUPIN, LUPINUS ALBUS

Chromatographic investigation of a methanolic extract of white lupin roots has revealed the presence of six new dihydrofuranoisoflavones (lupinisoflavones A-F).Three monoprenylated (3,3-dimethylallyl-substituted) isoflavones (wighteone, luteone and licoisoflavone A), two diprenylated isoflavones and two pyranoisoflavones (parvisoflavone B and licoisoflavone B) have also been isolated from the same source.In addition to genistein, leaf extracts of L. albus contain 3'-O-methylorobol which is presumed to be precursor of lupisoflavone .Probable biogenetic relationships between the prenylated, and dihydrofurano- and pyrano-substituted isoflavones in roots and leaves of L. albus are briefly discussed.Key Word Index -- Lupinus albus; Leguminosae; dihydrofuranoisoflavones; lupinisoflavones A-F; pyranoisoflavones; prenylated isoflavones; 3'-O-methylorobol: fungitoxins.